<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Vue.js 切换不同显示布局</title>
    <script src="https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.min.js"></script>
    <style>
        /* 隐藏未编译的变量 */

        [v-cloak] {
            display: none;
        }

        *{
            margin:0;
            padding:0;
        }

        body{
            font:15px/1.3 'Open Sans', sans-serif;
            color: #5e5b64;
            text-align:center;
        }

        a, a:visited {
            outline:none;
            color:#389dc1;
        }

        a:hover{
            text-decoration:none;
        }

        section, footer, header, aside, nav{
            display: block;
        }

        /*-------------------------
            搜索框
        --------------------------*/

        .bar{
            background-color:#5c9bb7;

            background-image:-webkit-linear-gradient(top, #5c9bb7, #5392ad);
            background-image:-moz-linear-gradient(top, #5c9bb7, #5392ad);
            background-image:linear-gradient(top, #5c9bb7, #5392ad);

            box-shadow: 0 1px 1px #ccc;
            border-radius: 2px;
            width: 580px;
            padding: 10px;
            margin: 45px auto 25px;
            position:relative;
            text-align:right;
            line-height: 1;
        }

        .bar a{
            background:#4987a1 center center no-repeat;
            width:32px;
            height:32px;
            display:inline-block;
            text-decoration:none !important;
            margin-right:5px;
            border-radius:2px;
            cursor:pointer;
        }

        .bar a.active{
            background-color:#c14694;
        }

        .bar a.list-icon{
            background-image:url();
        }

        .bar a.grid-icon{
            background-image:url();
        }

        .bar input{
            background:#fff no-repeat 13px 13px;

            border: none;
            width: 100%;
            line-height: 19px;
            padding: 11px 0;

            border-radius: 2px;
            box-shadow: 0 2px 8px #c4c4c4 inset;
            text-align: left;
            font-size: 14px;
            font-family: inherit;
            color: #738289;
            font-weight: bold;
            outline: none;
            text-indent: 40px;
        }

        /*-------------------------
            列表布局
        --------------------------*/

        ul.list{
            list-style: none;
            width: 500px;
            margin: 0 auto;
            text-align: left;
        }

        ul.list li{
            border-bottom: 1px solid #ddd;
            padding: 10px;
            overflow: hidden;
        }

        ul.list li img{
            width:120px;
            height:120px;
            float:left;
            border:none;
        }

        ul.list li p{
            margin-left: 135px;
            font-weight: bold;
            color:#6e7a7f;
        }

        /*-------------------------
            网格布局
        --------------------------*/

        ul.grid{
            list-style: none;
            width: 570px;
            margin: 0 auto;
            text-align: left;
        }

        ul.grid li{
            padding: 2px;
            float:left;
        }

        ul.grid li img{
            width:280px;
            height:280px;
            object-fit: cover;
            display:block;
            border:none;
        }
    </style>

</head>
<body>

<form id="main" v-cloak>

    <div class="bar">

        <!-- 两个按钮用于切换不同的列表布局 -->

        <a class="list-icon" v-bind:class="{ 'active': layout == 'list'}" v-on:click="layout = 'list'"></a>
        <a class="grid-icon" v-bind:class="{ 'active': layout == 'grid'}" v-on:click="layout = 'grid'"></a>
    </div>

    <!-- 我们设置了两套布局页面。使用哪套依赖于 "layout" 绑定 -->

    <ul v-if="layout == 'grid'" class="grid">
        <!-- 使用大图，没有文本 -->
        <li v-for="a in articles">
            <a v-bind:href="a.url" target="_blank"><img v-bind:src="a.image.large" /></a>
        </li>
    </ul>

    <ul v-if="layout == 'list'" class="list">
        <!-- 使用小图及标题 -->
        <li v-for="a in articles">
            <a v-bind:href="a.url" target="_blank"><img v-bind:src="a.image.small" /></a>
            <p>{{a.title}}</p>
        </li>
    </ul>

</form>
<script>

    var demo = new Vue({
        el: '#main',
        data: {
            // 视图模型，可能的值是 "grid" 或 "list"。
            layout: 'grid',

            articles: [{
                "title": "HTML 教程",
                "url": "https://www.runoob.com/html/html-tutorial.html",
                "image": {
                    "large": "https://static.jyshare.com/libs/images/mix/htmlbig.png",
                    "small": "https://static.jyshare.com/libs/images/icon/html.png"
                }
            },
                {
                    "title": "CSS 教程",
                    "url": "https://www.runoob.com/css/css-tutorial.html",
                    "image": {
                        "large": "https://static.jyshare.com/libs/images/mix/cssbig.png",
                        "small": "https://static.jyshare.com/libs/images/icon/css.png"
                    }
                },
                {
                    "title": "JS 教程",
                    "url": "https://www.runoob.com/js/js-tutorial.html",
                    "image": {
                        "large": "https://static.jyshare.com/libs/images/mix/jsbig.jpeg",
                        "small": "https://static.jyshare.com/libs/images/icon/js.png"
                    }
                },
                {
                    "title": "SQL  教程",
                    "url": "https://www.runoob.com/sql/sql-tutorial.html",
                    "image": {
                        "large": "https://static.jyshare.com/libs/images/mix/sqlbig.png",
                        "small": "https://static.jyshare.com/libs/images/icon/sql.png"
                    }
                },
                {
                    "title": "Ajax 教程",
                    "url": "https://www.runoob.com/ajax/ajax-tutorial.html",
                    "image": {
                        "large": "https://static.jyshare.com/libs/images/mix/ajaxbig.png",
                        "small": "https://static.jyshare.com/libs/images/icon/ajax.png"
                    }
                },
                {
                    "title": "Python 教程",
                    "url": "https://www.runoob.com/python/python-tutorial.html",
                    "image": {
                        "large": "https://static.jyshare.com/libs/images/mix/pythonbig.png",
                        "small": "https://static.jyshare.com/libs/images/icon/python.png"
                    }
                }]

        }
    });

</script>
</body>
</html>
